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Wales sees warmest February day in almost 30 years as Britain basks in sunshine but heatwave is not set to last

Swimmers enjoy the warm weather at Boscombe beach in Dorset. Credit: PA

Wales has enjoyed its hottest February in almost 30 years, as Britain continues to bask in unseasonably warm weather with highs of 19C (66.2F).

The bad news though is that the heatwave does not look set to last.

The west-coast beauty spot of Gogerddan, in Cardiganshire, Wales, was the hottest place in the UK at a record-breaking 19.1C, making it the warmest Welsh day in February since 1990.

Sunday saw cloudless skies in London. Credit: PA

Hampton Water Works, in the south west of London, was the hottest spot in England at 19C, and Londoners took advantage of the chance to head out into the sunshine on the South Bank of the Thames.

Down in Dorset crowds headed to the beach to enjoy the warm weather which is expected to continue on Monday and Tuesday.

Paddle boarders enjoy the warm weather and calm seas off Boscombe beach in Dorset Credit: PA

The Met Office described the weather as "unusually mild" and said it is likely to continue on Monday and Tuesday when the weather will likely "be equally as warm, if not with a greater chance of 18C or 19C".

However, the heatwave is not set to last, with temperatures returning to normal by mid-week.

“Monday and Tuesday will be the last of the very mild days with temperatures coming back to average levels after that,” a Met Office spokesperson said.

A jogger runs through a foggy Cannon Hill Park in Birmingham Credit: PA

The warm temperatures have been affected by a phenomenon known as the Foehn Effect, caused when moist air off the Atlantic bumps into westward facing hills in the UK, causing it to lose much of its moisture, generating energy and heat, and creating warming conditions as that air comes downslope on the eastern side of Britain's mountains and hills.

While Wales might have been the hottest place in the UK on Sunday, it failed to break the February record set in 1998 when the mercury soared to 19.7C (67.46F) in Greenwich.